Large bodied fish communities and drivers of use in the shallow
... Shallow coastal habitats support diverse communities of larval and juvenile fishes, providing refuge from predation while facilitating growth. The function of shallow coastal habitats as nurseries has created considerable interest in managing these areas. However, shallow coastal habitats may be imp ...
... Shallow coastal habitats support diverse communities of larval and juvenile fishes, providing refuge from predation while facilitating growth. The function of shallow coastal habitats as nurseries has created considerable interest in managing these areas. However, shallow coastal habitats may be imp ...
bird species richness in relation to isolation of aspen habitats
... the last century, there has been little regeneration of aspen, probably because tires have been prevented and suppressed (Crouch 1981). Without regeneration, most aspen stands eventually are invaded and replaced by conifers (Mueggler 1988). Exceptions may be high elevation aspen stands found in mesi ...
... the last century, there has been little regeneration of aspen, probably because tires have been prevented and suppressed (Crouch 1981). Without regeneration, most aspen stands eventually are invaded and replaced by conifers (Mueggler 1988). Exceptions may be high elevation aspen stands found in mesi ...
Bierregard et al. Bi..
... fragments simply because they were not in the patches of forest before the fragments were isolated. Species requiring large home ranges will not survive in small fragments. Microclimate may change within fragments, especially along the edges. Local macroclimatic patterns may be altered. We are only ...
... fragments simply because they were not in the patches of forest before the fragments were isolated. Species requiring large home ranges will not survive in small fragments. Microclimate may change within fragments, especially along the edges. Local macroclimatic patterns may be altered. We are only ...
Mudflats and Invertebrates
... meandering path offers many areas for slower moving waters to deposit their smaller and light weight sediments. Because the settling sediments are tiny, they can pack together tightly with little to no pore space between them. This lack of pore space creates an anoxic or anaerobic environment. While ...
... meandering path offers many areas for slower moving waters to deposit their smaller and light weight sediments. Because the settling sediments are tiny, they can pack together tightly with little to no pore space between them. This lack of pore space creates an anoxic or anaerobic environment. While ...
Managing arid zone natural resources in Australia for spatial and
... pulse and reserve patterns. As this diversity of niches increases, there is a corresponding expansion in the suite of plant lifehistory strategies that may be able to persist in response to different events and combinations of events, providing these combinations occur sufficiently often. Reynolds et ...
... pulse and reserve patterns. As this diversity of niches increases, there is a corresponding expansion in the suite of plant lifehistory strategies that may be able to persist in response to different events and combinations of events, providing these combinations occur sufficiently often. Reynolds et ...
The Influence of Predator-Prey Population Dynamics on the Long
... We develop a set of equations to describe the population dynamics of many interacting species in food webs. Predator-prey interactions are non-linear, and are based on ratio-dependent functional responses. The equations account for competition for resources between members of the same species, and b ...
... We develop a set of equations to describe the population dynamics of many interacting species in food webs. Predator-prey interactions are non-linear, and are based on ratio-dependent functional responses. The equations account for competition for resources between members of the same species, and b ...
Our Natural Heritage, Bioregional Pride
... that different authors give different shades of meaning to these terms. Following are the terms and definitions as we use them in this curriculum: “Bioregions are geographic areas having common characteristics of soil, watershed, climate, native plants and animals that exist within the whole planeta ...
... that different authors give different shades of meaning to these terms. Following are the terms and definitions as we use them in this curriculum: “Bioregions are geographic areas having common characteristics of soil, watershed, climate, native plants and animals that exist within the whole planeta ...
Towards a food web perspective on biodiversity and ecosystem
... impacts on processes that are disproportionate to their abundance or biomass. Duffy’s (2002) paper was one of the first to call for a merger of BEF and food-web theory, and the hypotheses put forth in that paper were useful, in part, because they represented an alternative to those posed by a number ...
... impacts on processes that are disproportionate to their abundance or biomass. Duffy’s (2002) paper was one of the first to call for a merger of BEF and food-web theory, and the hypotheses put forth in that paper were useful, in part, because they represented an alternative to those posed by a number ...
Northern Flying Squirrel (Glaucomys sabrinus) John Schoen
... squirrel in the long term. Maintaining adequate oldgrowth reserves across the POW Island complex as well as promoting second-growth restoration (for example, including snags, large woody debris, legacy Page 5 ...
... squirrel in the long term. Maintaining adequate oldgrowth reserves across the POW Island complex as well as promoting second-growth restoration (for example, including snags, large woody debris, legacy Page 5 ...
Considering ecological dynamics in resource selection functions
... (1999), in promoting the link between habitat and populations via the RSF, noted that lack of theory in habitat ecology was an inherent result of the complexity of how animals use habitat, which is a: ‘multi-faceted process requiring simultaneous consideration of several variables’. We argue that mo ...
... (1999), in promoting the link between habitat and populations via the RSF, noted that lack of theory in habitat ecology was an inherent result of the complexity of how animals use habitat, which is a: ‘multi-faceted process requiring simultaneous consideration of several variables’. We argue that mo ...
Full text in pdf format
... because they 'contain' 3 yr of recovery. The changes in age frequency between 1983 and 1985 can be viewed as measures of recovery (assuming no differences in natural mortality between the 2 periods). During this time (1983 to 1985) all a g e class groups between 15 and 40 yr showed increases in rela ...
... because they 'contain' 3 yr of recovery. The changes in age frequency between 1983 and 1985 can be viewed as measures of recovery (assuming no differences in natural mortality between the 2 periods). During this time (1983 to 1985) all a g e class groups between 15 and 40 yr showed increases in rela ...
Functional Extinctions of Species in Ecological Networks Torbjörn Säterberg
... Current rates of extinctions are estimated to be around 1000 times higher than background rates that would occur without anthropogenic impacts. These extinction rates refer to the traditional view of extinctions, i.e. numerical extinctions. This thesis is about another type of extinctions: functiona ...
... Current rates of extinctions are estimated to be around 1000 times higher than background rates that would occur without anthropogenic impacts. These extinction rates refer to the traditional view of extinctions, i.e. numerical extinctions. This thesis is about another type of extinctions: functiona ...
Considering ecological dynamics in resource selection functions
... (1999), in promoting the link between habitat and populations via the RSF, noted that lack of theory in habitat ecology was an inherent result of the complexity of how animals use habitat, which is a: ‘multi-faceted process requiring simultaneous consideration of several variables’. We argue that mo ...
... (1999), in promoting the link between habitat and populations via the RSF, noted that lack of theory in habitat ecology was an inherent result of the complexity of how animals use habitat, which is a: ‘multi-faceted process requiring simultaneous consideration of several variables’. We argue that mo ...
PRESS RELEASE: Fish and Wildlife Service October 9, 2007
... that the giant Palouse earthworm utilizes grassland sites with good soil and native vegetation of the Palouse bioregion. The Palouse bioregion includes parts of southeast Washington, west central Idaho, and a small portion of northeast Oregon. There is very little known about the giant Palouse earth ...
... that the giant Palouse earthworm utilizes grassland sites with good soil and native vegetation of the Palouse bioregion. The Palouse bioregion includes parts of southeast Washington, west central Idaho, and a small portion of northeast Oregon. There is very little known about the giant Palouse earth ...
Long-term ecological dynamics: reciprocal
... because they represent typical ecosystems, but rather because there are few confounding factors that influence ecosystem processes, thus making it easier to infer causal relationships. (c) Disturbance gradients Natural gradients can also be used to study long-term effects of changes in disturbance r ...
... because they represent typical ecosystems, but rather because there are few confounding factors that influence ecosystem processes, thus making it easier to infer causal relationships. (c) Disturbance gradients Natural gradients can also be used to study long-term effects of changes in disturbance r ...
application for
... Subject to law - proposal to translocate aquatic resources into and within South Australia must comply with relevant State and Commonwealth laws. A species will only be considered as a candidate for translocation if possession of the species does not conflict with the restrictions imposed under the ...
... Subject to law - proposal to translocate aquatic resources into and within South Australia must comply with relevant State and Commonwealth laws. A species will only be considered as a candidate for translocation if possession of the species does not conflict with the restrictions imposed under the ...
an audit of alien species in scotland
... In fulfilling these aims we have encountered two major problems. First, there is the very large number of alien vascular plants currently established in Scotland, considerably greater than we believed before starting the work. Most of these plants, except for some prominent nuisance species, have re ...
... In fulfilling these aims we have encountered two major problems. First, there is the very large number of alien vascular plants currently established in Scotland, considerably greater than we believed before starting the work. Most of these plants, except for some prominent nuisance species, have re ...
... enjoy the beaches, weather and wildlife; they also pollute, commute and contribute to the growth that impacts the various resources that make Florida unique. Environmental education is important in Florida because it provides people with the opportunity to stop what they are doing long enough to “sm ...
Learning objectives
... 8. Describe the basic steps that are used to analyze declining populations and determine possible interventions in the declining-population approach. Describe the case of the red-cockaded woodpecker to illustrate this approach. 9. Describe the conflicting demands that may accompany species conservat ...
... 8. Describe the basic steps that are used to analyze declining populations and determine possible interventions in the declining-population approach. Describe the case of the red-cockaded woodpecker to illustrate this approach. 9. Describe the conflicting demands that may accompany species conservat ...
Using Biodiversity and Evenness Comparisons Among Plant
... association of plant species on a landscape. Daubenmire plots, quadrat size, random or even placement of quadrats and the number of quadrats sufficient to capture most species were used to assess plant communities by ecologists for years (Clements 1963; Daubenmire 1968; Barbour et al. 1999). However ...
... association of plant species on a landscape. Daubenmire plots, quadrat size, random or even placement of quadrats and the number of quadrats sufficient to capture most species were used to assess plant communities by ecologists for years (Clements 1963; Daubenmire 1968; Barbour et al. 1999). However ...
Ecological monitoring in Cambridge Bay
... List of Figures Fig. 2.1. NMDS ordination of the spider community across all replicates and time periods using the log values of species relative abundance. Each point indicates the location of a sampled microhabitat: where the triangles denote the two dry ecosites and the squares denote the two we ...
... List of Figures Fig. 2.1. NMDS ordination of the spider community across all replicates and time periods using the log values of species relative abundance. Each point indicates the location of a sampled microhabitat: where the triangles denote the two dry ecosites and the squares denote the two we ...
Community assembly, coexistence and the environmental filtering
... 1. One of the most pervasive concepts in the study of community assembly is the metaphor of the environmental filter, which refers to abiotic factors that prevent the establishment or persistence of species in a particular location. The metaphor has its origins in the study of community change during ...
... 1. One of the most pervasive concepts in the study of community assembly is the metaphor of the environmental filter, which refers to abiotic factors that prevent the establishment or persistence of species in a particular location. The metaphor has its origins in the study of community change during ...
INDECO: Results of the investigation of modelling methods and
... species richness increases. Hypothetically, the loss in species richness may be attributable to the increase in any single contaminant (eg. PCBs, heavy metals, nitrates) or combination of contaminants. Under these circumstances, an excellent negative correlation (that is coincidental) could be erron ...
... species richness increases. Hypothetically, the loss in species richness may be attributable to the increase in any single contaminant (eg. PCBs, heavy metals, nitrates) or combination of contaminants. Under these circumstances, an excellent negative correlation (that is coincidental) could be erron ...
Pages 304-308 - KSU Web Home
... • The Russian Far East mountains house the last remaining tigers • Nearly became extinct due to hunting, poaching and habitat destruction • International conservation groups saved the species from extinction - Research, education, zoos, and captive breeding programs Copyright © 2008 Pearson Educatio ...
... • The Russian Far East mountains house the last remaining tigers • Nearly became extinct due to hunting, poaching and habitat destruction • International conservation groups saved the species from extinction - Research, education, zoos, and captive breeding programs Copyright © 2008 Pearson Educatio ...
Ungulate browsers promote herbaceous layer diversity in logged
... Although many studies have examined forest ecosystems with more than one ungulate species (e.g., Ammer 1996; Gill and Morgan 2010; Kuijper et al. 2010), few studies have specifically examined the effects of different numbers of ungulate species on forest and other plant communities (Ritchie and Olff ...
... Although many studies have examined forest ecosystems with more than one ungulate species (e.g., Ammer 1996; Gill and Morgan 2010; Kuijper et al. 2010), few studies have specifically examined the effects of different numbers of ungulate species on forest and other plant communities (Ritchie and Olff ...
Habitat conservation
Habitat conservation is a land management practice that seeks to conserve, protect and restore habitat areas for wild plants and animals, especially conservation reliant species, and prevent their extinction, fragmentation or reduction in range. It is a priority of many groups that cannot be easily characterized in terms of any one ideology.